NPTEL Problem Solving Through Programming In C Week 6 Assignment Answers 2022

NPTEL Problem Solving Through Programming In C Week 6 Assignment Answers

Q1. Which of the following is correct statement to access 5th element in a array arr[] of size 50?

a. arr[5]
b. arr[4]
c. arr{5}
d. arr{4}

Answer: b. arr[4]

Q2. Which statement is correct?

a. An index or subscript in array is a positive integer
b. An index or subscript in array is a positive or negative integer
c. An index or subscript in array is a real number
d. None of the above statement are correct

Answer: a. An index or subscript in array is a positive integer

Q3. What is the output of the C program?

#include<stdio.h>
int main()
{
int a[3]={10,12,14};
a[1]=20;
int i=0;
 while(i<3)
  {
  printf("%d",a[i]);
  i++;
  }
return 0;
}

a. 20 12 14
b. 10 20 14
c. 10 12 20
d. Compiler error

Answer: b. 10 20 14

Q4. An integer array (An integer takes two bytes of memory) of size 15 is declared in a C program. The memory location of the first byte of the array is 2000. What will be the location of the 13th element of the array?

a. 2013
b. 2024
c. 2026
d. 2030

Answer: b. 2024

Q5. To compare two arrays, we can do it by using

a. comparison operator ‘==’ directly on arrays
b. ‘Switch case’
c. ‘for’ loop
d. ‘ternary operator’ on arrays

Answer: c. ‘for’ loop

Q6. How many ‘a’ will be printed when the following code is executed?

#include<stdio.h>
int main()
{
  int i=0;
  char c='a';
  while(i<5)
{
 i++;
   switch(c)
    {
      case 'a':
  printf("%c",c);
    break;
    }
  printf("a\n"); 
  return 0;
 }

Answer: 6

Q7. What is the output of the following C program?

#include<stdio.h>
int main()
{
int arr[2]={1,2,3,4,5};
printf("%d",arr[3]);
return 0;
}

a. 3
b. 4
c. No output
d. Compilation Error

Answer: d. Compilation Error

Q8. What will be printed after execution of the following code?

#include<stdio.h>
int main()
 {
  int arr[10]={1,2,3,4,5};
  printf("%d",arr[5]);
  return 0;
}

a. Garbage Value
b. 0
c. 5
d. 6

Answer: b. 0

Q9. What is the output of the following C program?

#include<stdio.h>
int main()
{
int i;
int arr[3]={1};
  for(i=0;i<3;i++)
printf("%d",arr[i]);
  return 0;
}

a. 1 followed by two garbage values
b. 1 1 1

c. 1 0 0
d. 0 0 0

Answer: c. 1 0 0

Q10. What will be the output when the following code is executed.

#include<stdio.h>
int main()
{
int a[6]={1,2,3,4,5,6};
    switch(sizeof(a))
    {
     case 1:
     case 2:
     case 3:
     case 4:
     case 5:
printf("IIT KGP");
  break;
     }
printf("IIT MADRAS");
return 0;
}

a. IIT KGP
b. IIT MADRAS
c. Compilation Error
d. Nothing is printed

Answer: b. IIT MADRAS

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